<%--
  Created by IntelliJ IDEA.
  User: eleven
  Date: 15/11/7
  Time: 下午3:34
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--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
  <head>
    <meta charset="utf-8">
    <title>ECharts</title>
    <!-- 引入 echarts.js -->
    <script src="/echarts.min.js"></script>
  </head>
  <body>
  <a href="/test.htm">test</a>
  <a href="/echart3test.htm">echart3test</a>





  <!-- 为ECharts准备一个具备大小（宽高）的Dom -->
  <div id="main" style="width: 600px;height:400px;"></div>
  <button id="test" onclick="test()"></button>
  <script type="text/javascript">
    // 基于准备好的dom，初始化echarts实例
    var myChart = echarts.init(document.getElementById('main'));

    // 指定图表的配置项和数据
    var option = {
      title: {
        text: 'ECharts 入门示例'
      },
      tooltip: {},
      legend: {
        data:['销量']
      },
      xAxis: {
        data: ["衬衫","羊毛衫","雪纺衫","裤子","高跟鞋","袜子"]
      },
      yAxis: {},
      series: [{
        name: '销量',
        type: 'bar',
        data: [5, 20, 36, 10, 10, 20]
      }]
    };

    // 使用刚指定的配置项和数据显示图表。
    myChart.setOption(option);

    var img = new Image();
    img.src = myChart.getDataURL({
      pixelRatio: 2,
      backgroundColor: '#fff'
    });
    function test() {
      var xmlhttp=new XMLHttpRequest();
      xmlhttp.open("post","demo_post.htm?t=" + img,true);
      xmlhttp.send();
    }
  </script>

  </body>
</html>
